Question

One amoeba weighs about 1.5×10^-9

grams. About how many grams would a quantity of 5×10^12 amoebas weigh?

Answer 1

9514 1404 393

Answer:

7.5×10^3 grams

Explanation:

Your calculator can tell you the product of the weight of each times the number of them. It is ...

(1.5×10^-9)(5.0×10^12) = 7.5×10^(-9+12) = 7.5×10^3 . . . grams

About 7.5 kg.